.banner_Box {
    width: 100% !important;
    height: 260px;
    cursor: pointer;
    position: relative;
}

.bannerStyle {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.contentStyle {
    position: relative;
    left: 50%;
    top: 0;
    margin-left: -800px;
    /*图片宽度的一半*/
    height: 260px !important;
    width: 1600px !important;
}